Application: gvSIG desktop » gvSIG raster

/* gvSIG. Desktop Geographic Information System.

 *

 * Copyright ? 2007-2017 gvSIG Association

 *

 * This program is free software; you can redistribute it and/or

 * modify it under the terms of the GNU General Public License

 * as published by the Free Software Foundation; either version 2

 * of the License, or (at your option) any later version.

 *

 * This program is distributed in the hope that it will be useful,

 * but WITHOUT ANY WARRANTY; without even the implied warranty of

 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

 * GNU General Public License for more details.

 *

 * You should have received a copy of the GNU General Public License

 * along with this program; if not, write to the Free Software

 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,

 * MA  02110-1301, USA.

 *

 * For any additional information, do not hesitate to contact us

 * at info AT gvsig.com, or visit our website www.gvsig.com.

 */

package org.gvsig.raster.app.mainplugin;

import javax.swing.event.AncestorEvent;

import javax.swing.event.AncestorListener;

import org.gvsig.app.project.documents.view.ViewDocument;

import org.gvsig.fmap.mapcontext.layers.FLayer;

import org.gvsig.fmap.mapcontext.layers.LayerEvent;

import org.gvsig.fmap.mapcontext.layers.LayerListener;

import org.gvsig.fmap.mapcontext.raster.api.RasterLayer;

import org.gvsig.propertypage.PropertiesPage;

import org.gvsig.propertypage.PropertiesPageFactory;

import org.gvsig.raster.lib.buffer.api.statistics.Statistics;

/**

 * @author fdiaz

 *

 */

public class StatisticsPageFactory implements PropertiesPageFactory {

    @Override

    public String getGroupID() {

        return ViewDocument.LAYER_PROPERTIES_PAGE_GROUP;

    }

    @Override

    public boolean isVisible(Object obj) {

        return obj instanceof RasterLayer;

    }

    @Override

    public PropertiesPage create(Object obj) {

        if(obj instanceof RasterLayer){

            final RasterLayer layer = (RasterLayer)obj;

            final StatisticsPage page = (StatisticsPage) new StatisticsPage(layer.getStatistics(null));

            final LayerListener layerListener = new LayerListener() {

                @Override

                public void visibilityChanged(LayerEvent arg0) {

                    //Do nothing

                }

                @Override

                public void nameChanged(LayerEvent arg0) {

                    //Do nothing

                }

                @Override

                public void editionChanged(LayerEvent arg0) {

                    //Do nothing

                }

                @Override

                public void drawValueChanged(LayerEvent arg0) {

                    page.setStatistics(layer.getStatistics(null));

                }

                @Override

                public void activationChanged(LayerEvent arg0) {

                    //Do nothing

                }

            };

            layer.addLayerListener(layerListener);

            page.addAncestorListener(new AncestorListener() {

                @Override

                public void ancestorRemoved(AncestorEvent event) {

                    layer.removeLayerListener(layerListener);

                }

                @Override

                public void ancestorMoved(AncestorEvent event) {

                    //Do nothing

                }

                @Override

                public void ancestorAdded(AncestorEvent event) {

                    //Do nothing

                }

            });

            return page;

        }

        return null;

    }

}